FIELD: apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells, particularly releasable borehole perforator connection units and methods of usage thereof.
SUBSTANCE: releasing device for perforator separation of tubing string inside well bore comprises sealing mechanism arranged between tubing string and perforator to isolate well bore. Device also has equalizing mechanism to establish communication between flow string and well bore. Method for automatic perforator releasing involves connecting perforator to flow string comprising pressurized fluid; providing perforator detonation to separate thereof from flow string; equalizing pressure inside flow string and in well to remove perforator from flow string.
EFFECT: provision of automatic releasing after detonation and increased safety for well structure.
19 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WIRELESS INITIATION OF GUN PERFORATOR | 2008 |
|
RU2493358C2 |
| SAFETY DEVICE FOR BOREHOLE PERFORATION SYSTEM, BOREHOLE PERFORATION SYSTEM AND METHOD FOR BOREHOLE PERFORATION SYSTEM CONTROL | 2007 |
|
RU2349738C2 |
| DEVICE AND METHOD OF ENERGY CONTROL OF EXPLOSION IN WELL BORE | 2006 |
|
RU2388903C2 |
| WELL COMPLETION IN ONE PRODUCTION STRING RUNNING | 2003 |
|
RU2349735C2 |
| TUBING ENGAGEMENT AND DISENGAGEMENT DEVICE | 2016 |
|
RU2629511C1 |
| COUPLING ADAPTER, PERFORATING SYSTEM AND METHOD OF WELL PERFORATION | 2007 |
|
RU2447268C2 |
| PROCEDURE AND DEVICE FOR INTRAWELL SELECTIVE COMMUNICATION BY MEANS OF FLUID MEDIUM | 2007 |
|
RU2401936C1 |
| BOREHOLE HOLLOW-CARRIER JET-TYPE PERFORATOR | 2004 |
|
RU2270911C1 |
| 0 |
|
SU248592A1 | |
| METHOD AND DEVICE FOR EXPLOSIVE MATERIAL PROTECTION | 2001 |
|
RU2263769C2 |
